Table 4 Outcomes of neonates born following FET with different endometrial preparation protocols
| Â | Singletons delivery | Multiple delivery | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
NC (N = 1491) | OS (N = 272) | HRT (N = 1234) | aOR (95%CI) a | aOR (95%CI) a | NC (N = 861) | OS (N = 176) | HRT (N = 698) | aOR (95%CI) a | aOR (95%CI) a | |
No. (%) | No. (%) | No. (%) | OS vs.NC | HRT vs. NC | No. (%) | No. (%) | No. (%) | OS vs.NC | HRT vs. NC | |
Gender | ||||||||||
 Male | 733 (49.16) | 149 (54.78) | 625 (50.65) | Reference | Reference | 429 (49.83) | 80 (45.45) | 373 (53.44) | Reference | Reference |
 Female | 758 (50.84) | 123 (45.22) | 609 (49.35) | 0.80 (0.62–1.04) | 0.94 (0.80–1.10) | 432 (50.17) | 96 (54.55) | 325 (46.56) | 1.24 (0.89–1.73) | 0.89 (0.73–1.10) |
Birthweight | ||||||||||
  < 2500 g | 68 (4.56) | 23 (8.46) | 112 (9.08) | 1.71 (1.02–2.87) | 1.93 (1.39–2.68) | 368 (42.74) | 90 (51.14) | 386 (55.30) | 1.43 (1.03–1.99) | 1.69 (1.37–2.08) |
 2500-4000 g | 1319 (88.46) | 226 (83.09) | 1031 (83.55) | Reference | Reference | 493 (57.26) | 86 (48.86) | 312 (44.70) | Reference | Reference |
  > 4000 g | 104 (6.98) | 23 (8.46) | 91 (7.37) | 1.19 (0.74–1.91) | 1.01 (0.84–1.36) | 0 (0.00) | 0 (0.00) | 0 (0.00) | NA | NA |
Birthweight for gestational age | ||||||||||
 SGA | 104 (6.98) | 32 (11.76) | 126 (10.21) | 1.58 (1.02–2.43) | 1.27 (1.05–1.70) | 127 (14.75) | 35 (19.89) | 203 (29.08) | 1.39 (0.91–2.13) | 2.33 (1.79–3.03) |
 AGA | 1037 (69.55) | 189 (69.49) | 857 (69.45) | Reference | Reference | 689 (80.02) | 136 (77.27) | 464 (66.48) | Reference | Reference |
 LGA | 350 (23.47) | 51 (18.75) | 251 (20.34) | 0.74 (0.52–1.03) | 0.82 (0.67–1.01) | 45 (5.23) | 5 (2.84) | 31 (4.44) | 0.45 (0.16–1.21) | 0.92 (0.55–1.54) |